Improvement in making harvester-guard fingers



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LEWIS MILLER. O'F AKRON, OHIO.

Leners Patent No. 84,433, dated November 24, 186s.

IMPROVEMENT INMAKING- HARVESTER-GUARD FING-ERS.

the accompanying drawings, makingfa part of this specification, in which- Figure 1 represents a perspective view of -the ma chine.

Figures 2 and 3 represent, in perspective, and detached from the machine, the rolls and dies for accomplishing part of the work of making and completing the guards.

Figures 4, 5, 6, and 7, represent, in perspective, details ofthe operation, which will be specially referred to.

My invention consists in the use of special roller-dies, for shaping the parts of which the guards are made, and of welding roller-dies, in connection with die-tongs or holders, for completing the guards by welding and shaping them on the die-tongs or holders.

To enable those skilled in the art to make and use my invention, I will proceed to describe the same by reference to the drawings.

A represents housings, in which are hung and revolved, a pair of rolls, B C, that are geared together, and may be turned, set, or adjusted, in any of the usual well-knownvways. The rollers, or their necks or journals, project beyond one of the housings, so that a system of die-rollers may be readily placed and keyed thereon, or removed, and others substituted, as occasion may require. 'Ihe pairs of rolls are so made, as that a projecting portion of the perimeter of one shall turn in a corresponding depression ofthe perimeter of its mateor fellow, so as to cause the dies or semi-dies in the pair to match accurately, by preventing any undue end-motion.

The rolls D E,'iu fig. 1, Aby their dies ab, roll ont a piece or blank like that, F, in g.,4; and the rolls G H, by their dies c d, iig. 2, roll out pieces or blanks rlike those, I, at: iig. 5. These pieces, being properly heated, the piece F is-clarnped in a` pair of die-tongs or holders, J, fig.' 7, one arm, e, of said holder, being a die or former,71 to locate and form the shoulder 1 .and the space 2 under the cap, j, of the finished guard or finger, K, iig. 6, and the other arm, g, of said tongs, holder, or former, being a griping-jaw, to properly hold the said piece F. The piece I, fig. 5, being now laid upon the clamped piece, F, they are subjected, with the tongs, holder, or former, to the welding and shaping-rolls, L M, the dies, h i, of which, not only weld,

but, with the aid of the shaping-tongs, iinish the guard as seen in fig. 6. y

The rolls turn toward the operator, and at the front of the rolls there is a table, N, upon which the bar or Shaper is rested before entering between the rolls, and for guiding them in being inserted and withdrawn from between the rolls. Behind the rolls there is an adjustable gauge, O, fordefining the distance that the bar or shaper shall be introduced, so as to insure the action of the dies upon them.

Suitable grooves, j, are formed in one or both of the rolls of the pairs, so that the article to be acted upon can be inserted between them, clear up to the gauge, before thedies of the pairs seize, shape, and run it out again. And in those, L M, provision is made for allowing the tongs, Shaper, or holder, or at least its shaping-arm, c, to enter between its rolls, as itperfonns an essential element in the welding and inal shaping.

Having thus fully described my invention,

What I claim therein as new, and desire to secure by Letters Patent, is-

In combination with the rolls B C, projecting beyond one of their housings, the pairs of changeable die-rollers, with their dies for rolling out irregular, shouldered pieces, F I, as and for the purpose set forth.

Also, in combination with a pair of rolls projecting beyond one of their housings, a pair of welding and shaping-rolls and dies, and a pair of clamping and shaping-tongs or holders, operating together to hold,

vweld, and shapea guard or hnger, substantially as described.

L. MILLER. Vitnesses:

A. B. S'rouerrrou, EDMUND MAssoN. 

